.middle{
    width: 1900px;
    display: flex;
    justify-content: center;
}
.middle>div{
    width: 80%;
    display: flex;
    justify-content: center;
    /*border: 1px solid red;*/
    margin-bottom: 100px;
}





.middle>div>div:nth-child(1)>div{
    width: 800px;
    height: 600px;
    /*border: 1px solid black;*/
    margin-right: -12px;
}
.middle>div>div:nth-child(2){
    display: flex;
    justify-content: center;
    align-items: center;
    /*border: 1px solid blue;*/
    width: 100%;
    height: 600px;
    flex-wrap: wrap;
}
.middle>div>div:nth-child(2)>div{
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items:center;
    border: 1px solid gray;

    width: 351px;
    height: 199px;




}